257 items
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date | 1926-09-26 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date | 1926-09-22 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | Summer 1926 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Shaffner, Marchant N. (Marchant Nissley), 1897-1990 |
| Date | 1954 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Stone, Ralph W. (Ralph Walter), 1876-1964 |
| Date |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date | 1940-10-17 |
| Subject | Mineral Resources-Coal |
|---|---|
| Creator | Ashley, Geo. H. (George Hall), 1866-1951 |
| Date |